3 files changed, 81 insertions, 0 deletions
diff --git a/src/jcgp/modules/fitness/FitnessFunction.java b/src/jcgp/modules/fitness/FitnessFunction.java
new file mode 100644
index 0000000..8ed1b56
--- /dev/null
+++ b/src/jcgp/modules/fitness/FitnessFunction.java
@@ -0,0 +1,9 @@
+package jcgp.modules.fitness;
+
+import jcgp.population.Population;
+
+public interface FitnessFunction {
+
+	public void evaluate(Population population);
+	
+}
diff --git a/src/jcgp/modules/fitness/TestCase.java b/src/jcgp/modules/fitness/TestCase.java
new file mode 100644
index 0000000..0cb09f1
--- /dev/null
+++ b/src/jcgp/modules/fitness/TestCase.java
@@ -0,0 +1,42 @@
+package jcgp.modules.fitness;
+
+import jcgp.exceptions.ParameterMismatchException;
+import jcgp.parameters.Parameters;
+
+public class TestCase {
+
+	private Object[] inputs;
+	private Object[] outputs;
+	
+	public TestCase(Object[] inputs, Object[] outputs) throws ParameterMismatchException {
+		if (inputs.length == Parameters.getInputs()) {
+			this.inputs = inputs;
+		} else {
+			throw new ParameterMismatchException();
+		}
+		
+		if (outputs.length == Parameters.getOutputs()) {
+			this.outputs = outputs;
+		} else {
+			throw new ParameterMismatchException();
+		}
+		
+	}
+	
+	public Object getInput(int index) {
+		return inputs[index];
+	}
+	
+	public Object getOutput(int index) {
+		return outputs[index];
+	}
+	
+	public Object[] getInputs() {
+		return inputs;
+	}
+	
+	public Object[] getOutputs() {
+		return outputs;
+	}
+	
+}
diff --git a/src/jcgp/modules/fitness/TruthTableEvaluator.java b/src/jcgp/modules/fitness/TruthTableEvaluator.java
new file mode 100644
index 0000000..a69de96
--- /dev/null
+++ b/src/jcgp/modules/fitness/TruthTableEvaluator.java
@@ -0,0 +1,30 @@
+package jcgp.modules.fitness;
+
+import jcgp.TruthTable;
+import jcgp.parameters.Parameters;
+import jcgp.population.Population;
+
+public class TruthTableEvaluator implements FitnessFunction {
+
+	@Override
+	public void evaluate(Population population) {
+		// for every chromosome in the population
+		for (int i = 0; i < Parameters.getPopulationSize(); i++) {
+			int fitness = 0;
+			// for every test case
+			for (int t = 0; t < TruthTable.getTestCaseCount(); t++) {
+				population.getChromosome(i).setInputs(TruthTable.getTestCase(t).getInputs());
+				// check every output
+				for (int o = 0; o < Parameters.getOutputs(); o++) {
+					if (population.getChromosome(i).getOutput(o).calculate() == TruthTable.getTestCase(t).getOutput(o)) {
+						fitness++;
+					}
+				}
+			}
+			population.getChromosome(i).setFitness(fitness);
+			if (Parameters.getDebug()) {
+				System.out.println("active nodes: " + population.getChromosome(i).getActiveNodes().size());
+			}
+		}
+	}
+}